this post was submitted on 17 Oct 2025
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xkcd #3156: Planetary Rings

Title text:

If you don't know where you are on Earth, the angle of satellite dishes can help constrain your latitude. If some of them are pointing straight up, you're probably near the Equator, right under the ring.

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Source: https://xkcd.com/3156/

explainxkcd for #3156

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[–] unexposedhazard@discuss.tchncs.de 15 points 6 days ago (1 children)

Whats the difference between the thin green horizontal ring and the wide orange horizontal ring that is slightly tilted?

[–] Pencilnoob@lemmy.world 16 points 6 days ago

Green is active, orange is debris or dead sats. When a GEO sat runs out of life / power / fuel the operators are supposed to move it out of the main corridor to make room, so often they are in the same ring but higher or lower